ModelAAB-400.4D Atom ClassD Number of the channels4 Frequency response10-20000 Hz 1 Ohm RMS Power (14.4 V)430 W x 4 2 Ohm RMS Power (14.4 V)265 W x 4 4 Ohm RMS Power (14.4 V)140 W x 4 2 Ohm RMS Power (Bridge)833 W x 2 4 Ohm RMS Power (Bridge)516 W x 2 Minimum permissible load on the channel1 Ohm Minimum permissible load in a bridge connection2 Ohm Input SPL0.2 - 6 V Low pass filter50-6000 Hz High pass filter15-6000 Hz LPF and HPF simultaneous operationTrue Crossover12 dB/Oct Bass frequency adjustment45 Hz Input terminal4 Ga Output terminal8 Ga Damping factor≥ 260 Working voltage9 - 15 V Signal-to-noise ratio≥ 100 dB Size (W×L×H)6.30 × 8.98 × 2.50 inch Gross weight5.29 lb (2.40 kg)